What should you know about black stool medical term?

Short answer
Melaena means black, sticky, tar-like stool, often with a strong unpleasant smell. It usually describes blood that has been altered while moving through the stomach or upper small intestine. Black colour from iron, bismuth, or food colouring can look similar, so a clinician may need to distinguish the causes.
This answers one question. It is not a diagnosis and does not replace an assessment by a licensed doctor.
At a glance
- Medical term
- Melaena
- Typical texture
- Sticky and tar-like
- Possible source
- Upper digestive tract
Why melaena can happen
An irritated or damaged upper digestive lining can bleed and change the stool’s appearance. Gastritis, Helicobacter Pylori Infection, and Peptic Ulcer may affect this part of the digestive system. The amount of bleeding cannot be judged reliably from colour or from whether pain is present. Some people notice tiredness, light-headedness, nausea, or vomiting, while others notice only the stool change.
What to record and report
Write down when the stool changed, whether it was sticky or loose, and any recent iron, bismuth, dark foods, or new medicines. Tell a clinician about previous ulcers, digestive symptoms, and medicines that can increase bleeding risk. Arrange prompt assessment for unexplained melaena; do not take extra pain medicine to manage it without checking its suitability.
Urgent warning signs
Seek emergency care for fainting, severe weakness, confusion, breathlessness, a racing heartbeat, vomiting blood, or severe abdominal pain alongside black tarry stool. These features may indicate important blood loss. A lack of pain does not make melaena harmless.
Questions to bring
Ask whether your stool fits the meaning of melaena, whether blood testing or other investigations are needed, and how to use your regular medicines while the cause is being checked.
Find care
General Clinics & Polyclinics in Abu Dhabi
That answer is general. If you want it applied to your own case, these are licensed general clinics & polyclinics listed in Abu Dhabi.
27 Ar Ruwwad St - Shakhbout City - MSH4 - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, Cigna, MetLife +20 more
Al Ruwais, Al Dhafrah
Accepts: Daman, Thiqa, AXA, Cigna +16 more
Al Bahyah - Al Bahyah Old - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, Cigna, Allianz Care +18 more
Abu Dhabi
Accepts: Daman, Thiqa, AXA, Cigna +27 more
Ordered by verification status and how complete each clinic's public record is, then alphabetically. This is a directory listing, not a ranking — Zavis does not rate or recommend providers.
A factual listing drawn from the DHA, DOH and MOHAP licence registers. It is not a referral, an endorsement, or advice that any of these providers is right for you.
Questions people ask
Is every black stool called melaena?
No. Melaena specifically refers to black tarry stool associated with digested blood; medicines and foods can also darken stool.
Can melaena be the only symptom?
Yes. Some people have no pain or other obvious symptom, which is why an unexplained tarry change needs assessment.
Related
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Medical disclaimer. This page is general health information, not medical advice, and it cannot diagnose you. Always consult a licensed healthcare provider about your own symptoms and treatment. In an emergency in the UAE, call 998 for an ambulance.